chore(*): update master details tests

Author: nrobakova

projects/igniteui-angular/src/lib/grids/grid/grid.master-detail.spec.ts

@@ -373,7 +373,7 @@ describe('IgxGrid Master Detail #grid', () => {
             const targetCellElement = grid.getCellByColumn(4, 'ContactName');
 
             GridFunctions.simulateCellKeydown(targetCellElement, 'ArrowDown');
-            await wait();
+            await wait(DEBOUNCETIME);
             fix.detectChanges();
 
             const detailRow = GridFunctions.getMasterRowDetail(row);
@@ -479,7 +479,7 @@ describe('IgxGrid Master Detail #grid', () => {
             expect(document.activeElement).toBe(detailRow);
 
             GridFunctions.simulateDetailKeydown(grid, prevRow, 'Tab', false, true);
-            await wait();
+            await wait(DEBOUNCETIME);
             fix.detectChanges();
 
             expect(document.activeElement).toBe(grid.getCellByColumn(0, 'CompanyName').nativeElement);